Representatives from the U.S. Conference of Catholic Bishops celebrated Mass Jan. 20 at the tomb of two Maryknoll sisters from the U.S. buried in El Salvador. Salvadoran bishops are working on a canonization cause for "martyr friends/companions," which will include the four women, as well as foreign-born priests, such as a group of Spanish-born Jesuits assassinated in 1989 and other Salvadoran Catholics slain during the country's civil war.